First off, after reading lots of forums, the members here seem to be on the ball. So thanks to all...
I just replaced a Pentair CCP320 that was falling apart with a Hayward S244T with zeobest as recommended by large pool chain. Started up and backwashed for while till clear, rinsed and then went to filter. After about 5 minutes, it still sounds like lots of air bubbling, actually sounds like marbles in tank at top near valve. All fittings tight and no noticable leaks. Returns show no bubbling so I'm at a loss?? With the CCp320, i'd just turn the pressure relief on top and all was good.
Here is the set-up that might be adding to problem. All plumbing is 2" right up to 7 port top mount valve which is fitted with 1-1/2" intake/ outflow. Pump is a 2HP Pentair whisperflo. All plumbing is real clean with no bends from pump to filter and then out two 45' bends to heater.
Pool is 16x32 6.5 ft deep end. Anybody have any ideas? Pump to big? Downsize impeller? Reduce plumbing to 1-1/2" from pump to filter?
Thanks to all for your help..